Home / 20,217.64-27,911.92-13,514.62

Finding the Fourth Proportional to 20,217.64, 27,911.92 and 13,514.62

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Solution

The fourth proportional to 20,217.64, 27,911.92 and 13,514.62 is: 18,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.64 : 27,911.92 = 13,514.62 : x
  2. Step 2: Convert to fraction form
    20,217.64/27,911.92 = 13,514.62/x
  3. Step 3: Cross multiply
    20,217.64x = 27,911.92 × 13,514.62
  4. Step 4: Simplify right side
    20,217.64x = 377,218,992.27
  5. Step 5: Solve for x
    x = 377,218,992.27/20,217.64
  6. Step 6: Final answer
    x = 18,657.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.